Identification of noval donors for resistance against Tilletia indica causing Karnal bunt from wild and related species of wheat

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dc.contributor.advisorVineet Kumar
dc.contributor.authorGeorge, Anju Grace
dc.date.accessioned2021-09-10T04:37:37Z
dc.date.available2021-09-10T04:37:37Z
dc.date.issued2020
dc.description.abstractKarnal bunt (KB) of wheat caused by the fungus Tilletia indica is an internationally quarantine-significant disease of wheat. KB can be managed in a better way by exploiting genetic resistance in wild and related species of wheat. A population of 490 lines derived from progenitor species of wheat such as Aegilops tauschii and Triticum spp. (T. monococcum, T. boeoticum, T. dicoccoides), non-progenitor species Triticum araraticum and Aegilops triuncialis and triticale introgressions with wheat was utilized in this study. This study was conducted at the Experimental farm and laboratories, Department of Plant Breeding & Genetics, PAU Ludhiana during rabi seasons of 2018-19 and 2019-20. Among the progenitor and non-progenitor species and their bread wheat introgressions, Triticum araraticum 4747 /WHD 943 // bread wheat showed the highest level of KB resistance. This was followed by PDW 233 / Aegilops tauschii 14119// bread wheat. Among the triticale lines with diverse genetic background and their introgressions with bread wheat, TL 2908/2*CS(S)// DBW17 showed the highest level of KB resistance followed by T 3021/2* CS (S) // PBW 550. These lines were considered as promising donors for KB resistance and can be utilized for further breeding disease resistant varieties. Expressed Sequence Tag (EST) based markers specific for chromosome arms of rye were used to determine rye chromosomes associated with the KB resistant triticale x bread wheat lines. The introgressed regions of rye chromosome 4RL, 4RS and 7RL might have contributed to KB resistance in the phenotypically resistant lines.en_US
dc.identifier.citationGeorge, Anju Grace (2020). Identification of noval donors for resistance against Tilletia indica causing Karnal bunt from wild and related species of wheat (Unpublished M.Sc. thesis). Punjab Agricultural University, Ludhiana, Punjab, India.en_US
dc.identifier.urihttps://krishikosh.egranth.ac.in/handle/1/5810175599
dc.keywordsKarnal bunt, wheat, Tilletia indica, Aegilops spp., Triticum spp., triticale, introgressions, EST based rye markersen_US
dc.language.isoEnglishen_US
dc.pages77en_US
dc.publisherPunjab Agricultural University, Ludhianaen_US
dc.research.problemIdentification of noval donors for resistance against Tilletia indica causing Karnal bunt from wild and related species of wheaten_US
dc.subPlant Pathologyen_US
dc.themeIdentification of noval donors for resistance against Tilletia indica causing Karnal bunt from wild and related species of wheaten_US
dc.these.typeM.Scen_US
dc.titleIdentification of noval donors for resistance against Tilletia indica causing Karnal bunt from wild and related species of wheaten_US
dc.typeThesisen_US
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